EP1972467B1 - Halbhohlreifen, insbesondere für Landwirtschaftsmaschine - Google Patents
Halbhohlreifen, insbesondere für Landwirtschaftsmaschine Download PDFInfo
- Publication number
- EP1972467B1 EP1972467B1 EP08290226A EP08290226A EP1972467B1 EP 1972467 B1 EP1972467 B1 EP 1972467B1 EP 08290226 A EP08290226 A EP 08290226A EP 08290226 A EP08290226 A EP 08290226A EP 1972467 B1 EP1972467 B1 EP 1972467B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- tyre
- grippers
- median plane
- tread
- tire
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
- 238000009313 farming Methods 0.000 title 1
- 230000002093 peripheral effect Effects 0.000 claims abstract description 3
- 239000007937 lozenge Substances 0.000 claims 3
- 238000005096 rolling process Methods 0.000 abstract 5
- 241000909536 Gobiesocidae Species 0.000 description 22
- 239000002689 soil Substances 0.000 description 10
- 239000010432 diamond Substances 0.000 description 4
- 229910003460 diamond Inorganic materials 0.000 description 3
- 238000003971 tillage Methods 0.000 description 3
- 238000004140 cleaning Methods 0.000 description 2
- 238000002955 isolation Methods 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 238000000926 separation method Methods 0.000 description 2
- 238000009331 sowing Methods 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- 208000007101 Muscle Cramp Diseases 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 238000005520 cutting process Methods 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 239000013536 elastomeric material Substances 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- 230000035784 germination Effects 0.000 description 1
- 238000003306 harvesting Methods 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 238000010899 nucleation Methods 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 238000007665 sagging Methods 0.000 description 1
- 125000006850 spacer group Chemical group 0.000 description 1
- 238000004073 vulcanization Methods 0.000 description 1
Images
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60C—VEHICLE TYRES; TYRE INFLATION; TYRE CHANGING; CONNECTING VALVES TO INFLATABLE ELASTIC BODIES IN GENERAL; DEVICES OR ARRANGEMENTS RELATED TO TYRES
- B60C11/00—Tyre tread bands; Tread patterns; Anti-skid inserts
- B60C11/03—Tread patterns
- B60C11/0311—Patterns comprising tread lugs arranged parallel or oblique to the axis of rotation
-
- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01B—SOIL WORKING IN AGRICULTURE OR FORESTRY; PARTS, DETAILS, OR ACCESSORIES OF AGRICULTURAL MACHINES OR IMPLEMENTS, IN GENERAL
- A01B29/00—Rollers
- A01B29/04—Rollers with non-smooth surface formed of rotatably-mounted rings or discs or with projections or ribs on the roller body; Land packers
- A01B29/041—Rollers with non-smooth surface formed of rotatably-mounted rings or discs or with projections or ribs on the roller body; Land packers of "Cambridge"-type, i.e. the soil-pressing rings being stacked on a shaft
- A01B29/043—Tire-packers
Definitions
- the invention relates to special-purpose tires, and in particular those intended to be used with agricultural equipment, in particular rollers intended for machines combined with seeders, soil preparation tools, etc.
- the publication FR-A-2,763,279 in the name of the Applicant, describes a semi-hollow type dome-shaped tire for such use. These tires are intended to be threaded around a central tube to form a roll used in agricultural machinery. Alternatively, the tire can be mounted individually between two flanges.
- These tires are particularly suitable for agricultural rollers, which are usually pulled by a tractor by being placed behind tillage tools, the roller possibly being followed by other work tools.
- a typical application is that of seed rollers, in which the tractor pulls a machine formed of a combination of semi-carried tools including: tillage tools; then, the roller with its domed tires that create grooves in the ground previously loosened by the tools; then seeders which deposit seeds or seeds in the grooves formed by the passage of the roller; and finally landfill tools to bury the seeds.
- the roller equipped with its domed tires is placed behind tillage tools, for example to ensure stubble removal of the soil after harvest.
- the roller is not followed by tools, it is then essentially used to press the ground.
- dome profile tire may be mounted on a rim or the like to form an individual wheel.
- Several of these wheels can then be combined in a configuration chosen by being each independent to better follow the irregularities of the ground.
- the tire adapted to these uses and described in the publication FR-A-2,763,279 aforementioned comprises a central sleeve adapted to be threaded around a horizontal tube of the agricultural machine, and at least one dome-shaped bearing portion having a tread connected to the sheath by two flanks so as to define a hollow annular space cross section reduced with respect to the cross section of the dome profile.
- the hollow annular space is not inflated, and it can communicate with the ambient through an orifice through the thickness of the sleeve and ensuring in particular the balancing of the pressures in use. Due to the dome shape and the presence of the hollow annular space of reduced and non-inflated cross-section, the tread of the tire does not collapse too much, while having sufficient flexibility to allow it to undergo deformities and to be self-cleaning.
- One of the aims of the invention is to propose a tire of the aforementioned type which solves these disadvantages, while retaining the advantageous characteristics mentioned above.
- the invention also aims to provide such a tire that allows use not only in the field, but also on the road without raising the roller.
- the tire must be able to withstand driving on the road with good endurance and, secondly, clean as soon as possible, from the beginning of driving, to avoid dirtying long sections of road.
- the invention proposes for this purpose a tire of the type defined in the introduction as disclosed by the publication FR-A-2,763,279 supra.
- this tire comprises a plurality of peripheral studs formed protruding on the tread and distributed in the circumferential direction at the top of the dome profile.
- the invention proposes to create crampons on the top of the tread: when the roller moves to form the grooves, the presence of these crampons introduces a discontinuity in the groove, favoring the crumbling of the tread. soil and the creation of fracture zones to capture water, as discussed above.
- crampons are preferably arranged on the tread on either side of the median plane of the tire.
- the crampons extend, in the axial direction, from the top of the flanks to the median plane of the tire, without axially protruding from the surface of these flanks.
- the crampons are thus perfectly compatible with the use of scrapers positioned, as on current smooth models, between the tires: this region maintains the same profile, insofar as the crampons are arranged on the tread of the profile. dome, not on the flanks, which can be easily cleaned.
- At least some of the spikes extend in a larger dimension at an angle to the axis of the tire.
- Their width, considered between their end closest to the top of the sidewall and their end closest to the median plane of the tire, is preferably of greater dimension than their length, considered in the circumferential direction.
- crampons may in particular have a form of chevrons or half-rafters extending axially to the level of the median plane of the tire.
- the studs are arranged symmetrically on one side and the other of the median plane of the tire.
- the studs are alternately arranged on one side and the other of the median plane of the tire with a shift of one crampon to the next in the circumferential direction.
- the crampons do not extend in the axial direction up to the level of the plane median of the tire, so as to leave between them a gap at the top of the tread.
- the crampons have a general diamond shape or a generally oblong shape.
- the tire can be used in both directions and / or threaded in one direction or the other, during the stacking of the tires on the central tube of the roller.
- the minor axis of the rhombus or oblong contour generally extends from the top of the sidewall to the median plane of the tire, and the diamonds or oblong contours are advantageously arranged alternately on one side and the other of the median plane of the tire with a shift from one crampon to the next in the circumferential direction.
- the length of the crampons is larger than their width, considered between their end closest to the top of the sidewall and their end closest to the median plane of the tire.
- the invention in another aspect, relates to a roller comprising a plurality of tires as defined above.
- the invention also relates to a wheel comprising a tire as defined above.
- the figure 1 is a perspective view, partially broken away, of a roller equipped with a series of tires according to a first embodiment of the invention.
- FIGS. 2a and 2b are views, respectively in profile and in perspective, of a tire according to this first embodiment of the invention, shown in isolation.
- FIGS. 3a and 3b are counterparts Figures 2a and 2b for a variant of the first embodiment.
- FIGS. 4a and 4b are views, respectively in profile and in perspective, of a tire according to a second embodiment of the invention.
- FIGS. 5a and 5b are views, respectively in profile and in perspective, of a tire according to a third embodiment of the invention.
- FIGS. 6a and 6b are counterparts Figures 5a and 5b for a variant of the third embodiment.
- the figure 7 is a perspective view of a wheel comprising a tire according to the invention, and an associated wheel support.
- the figure 8 is a perspective view of an assembly formed from a plurality of wheels according to the figure 7 .
- the tire of the invention is suitable for producing an agricultural roller 10, for example a roller for seeding, comprising a central tube 12 rotatably mounted about an axis XX and on which are mounted a succession of similar tires 14 (one of these tires is shown in isolation Figures 2a and 2b ).
- the various tires of the stack can be further secured to each other by appropriate assembly elements (not shown), for example those described in the publication FR-A-2,784,331 , in the name of the Applicant, to which we can refer for further details.
- the end flange 16 bears against the last tire 18 of the stack, which by virtue of this function may have a profile slightly different from the tires 14, to allow it to fit into the cheek 14.
- the cheek is itself secured in 20 to the central tube 12.
- the stack of tires and the tube form a integral assembly constituting a roller capable of being mounted via a hub 22 on a support frame of an agricultural machine comprising other elements (seeder, drawbar, etc.) and towed in a direction perpendicular to the axial direction XX of the roller 10.
- the displacement of the support frame causes by reaction of the tires on the ground the rotation of the driven roll 10.
- the tires create grooves in the ground parallel to each other, grooves in which, for example, seeds may be sown.
- the spacing between the furrows corresponds to the interval between the treads of the adjacent tires; to adjust this spacing, it is possible to interpose between the adjacent tires annular spacer elements whose width in the axial direction will be chosen according to the desired deviation for the grooves.
- the width of the grooves created by the tires can be chosen according to the applications to allow, for example, to form a single line of sowing or at least two rows of sowing.
- the tire suitable for the use just mentioned is of the general type described in the publication FR-A-2,763,279 mentioned in the introduction, that is to say the part intended to come into contact with the ground to be worked, or with the road surface, is a tread portion 24 with a domed profile (convex rounded profile) .
- This tread 24 is connected by two opposite flanks 28, 30 to an enlarged portion 26 forming a sleeve, adapted to be threaded on the tube 12.
- the two sidewalls 28, 30 define inside the tire an annular space 32 of reduced cross section relative to the cross section of the dome assembly profile of the tire.
- This hollow annular space 32 is not inflated, it can communicate with the ambient medium through an orifice passing through the thickness of the sheath 26 (this orifice, not shown, besides the balancing of the pressures in use, serves during the manufacture of the tire with the injection of air under pressure during the vulcanization step). It is indeed desirable that the tire can deform somewhat in the region between the tread 24 and the sleeve 26 to facilitate the separation of the earth which otherwise would tend to adhere to the tire in the region of the flanks 28 , 30. This deformation of the tire, which gives it sufficient flexibility to dampen the deformations and be self-cleaning, is however limited by the dome shape, which prevents the tread from sagging excessively.
- the central sleeve can be mechanically reinforced by one or more twisted cables or a metal ring embedded in the material of the tire, in particular to ensure a better hold on the tube 12 despite the mechanical stresses received by the tire, which can be quite intense and brutal, especially on the road.
- the tire 14 comprises at the top of the tread 24 crampons such as 34, formed at the periphery of the tire and distributed in the circumferential direction.
- these crampons are arranged obliquely, that is to say they form an angle ⁇ ( figure 2a ), of the order of 30 ° to 45 °, alternately in one direction and the other.
- the crampons 34 of this embodiment are designed to extend each in a half-space defined by the median plane P, alternately on one side and the other of this plane P, the crampons being further off-set. circumferentially from one crampon to the next.
- the studs 36 are similar to the studs 34 of the previous embodiment, except that in the circumferential direction they are not shifted from one crampon to the next, thus giving a configuration in full chevrons, that is to say a V-shape with two adjoining symmetrical branches extending on either side of the median plane P and meeting at this plane.
- the cramps 38 are circumferentially offset relative to the median plane P (as in the case of Figures 2a and 2b ), but they do not extend to the median plane P, and thus leave the top of the tread 24 a smooth gap 40 between the two rows of spikes 38.
- the length of the studs 38 is larger than their width, considered between their end closest to the top of the sidewall 28 or 30 and their most extreme end. close to the median plane P, in contrast to the embodiment of the Figures 2a and 2b , and 3a and 3b .
- the Figures 5a and 5b illustrate a third embodiment, where the studs 42 have approximately a diamond shape.
- the minor axis of the rhombus extends approximately from the top of the sidewall 28 or 30 to the median plane P.
- the cleats 42 are circumferentially offset from one crampon to the next, leaving the tread at the top of the tread a smooth zone 44 no longer rectilinear as in the case of Figures 4a and 4b but in the form of a zigzag.
- the shape of the studs makes it possible to mount the tire indifferently in one direction or the other and / or to use it in both directions of rotation, unlike the preceding embodiments.
- the Figures 6a and 6b illustrate a variant of the previous embodiment, where the spikes 46 have substantially the same layout but have an oblong shape, unlike the diamond shape of the spikes 42 of the Figures 5a and 5b .
- This oblong shape more rounded, allows a better separation of the ground on heavy ground.
- the sidewalls 28, 30 are free of crampons: the studs 34, 36, 38, 42 or 46 only extend over the tread 24, from top of flanks. In this way, the crampons do not protrude from the flanks and do not interfere with the action of scrapers usually present on agricultural machinery using these tires.
- the figure 7 shows in perspective a wheel 50 having a rim 52, made in one or more parts, on which is mounted a tire 14 according to the invention.
- the wheel 50 is carried by a bracket 54 in the form of a stirrup via a pivot 56.
- the figure 8 shows how several wheels 50 with their respective supports 54, in the example of nine, can be grouped to form a set 58 which is similar to a roller but in which the individual wheels are independent.
- the supports 54 of the wheels are here shifted in pairs to avoid a coaxial arrangement of the wheels 50.
- the supports 54 may for example be mounted on respective independent arms (not shown) to allow the wheels to better follow the irregularities of the ground on which they move.
- the tire of the invention can be made from the same manufacturing techniques as those of semi-hollow tires with a smooth surface.
- the method consists of producing a hollow extruded profile of elastomeric material and cutting a section of this section. The ends of this section are patched together to get a circular element, then this circular element is placed in a mold and vulcanized in a conventional manner, to obtain the finished tire.
Landscapes
- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Soil Sciences (AREA)
- Environmental Sciences (AREA)
- Tires In General (AREA)
- Catching Or Destruction (AREA)
- External Artificial Organs (AREA)
- Forging (AREA)
- Preparation Of Compounds By Using Micro-Organisms (AREA)
Claims (16)
- Luftreifen (14) vom halbhohlen Typ für Landmaschinen, insbesondere für eine Maschine die eine Walze aufweist, die mit einer Reihe von Luftreifen versehen ist, die auf ein horizontales Rohr (12) montiert sind, wobei dieser Luftreifen ein zentrales Futteral (26) und wenigstens einen Rollabschnitt mit Kuppelprofil aufweist, mit einer Lauffläche (24), die mit dem Futteral (26) durch zwei Flanken (28, 30) verbunden ist, derart, dass ein hohler ringförmiger Raum (32) von verringertem Querschnitt gegenüber dem Querschnitt des Kuppelprofils begrenzt wird, dadurch gekennzeichnet, dass er eine Mehrzahl von Umfangskrampen (34; 36; 38; 42; 46) aufweist, die vorspringend an der Lauffläche (24) ausgebildet sind und in Umfangsrichtung verteilt am Scheitel des Kuppelprofils angeordnet sind.
- Luftreifen nach Anspruch 1, dadurch gekennzeichnet, dass die Krampen (34; 36; 38; 42; 46) auf der Lauffläche beiderseits der Mittenebene (P) des Luftreifens verteilt angeordnet sind.
- Luftreifen nach Anspruch 1, dadurch gekennzeichnet, dass die Krampen (34; 36; 38; 42; 46) sich in axialer Richtung von dem Scheitel der Flanken (28, 30) zur Mittenebene (P) des Luftreifens erstrecken und ohne axial von der Oberfläche dieser Flanken vorzuspringen.
- Luftreifen nach Anspruch 1, dadurch gekennzeichnet, dass wenigstens bestimmte dieser Krampen (34; 36; 38) sich entlang einer größeren Abmessung erstrecken, die einen Winkel (α) bezüglich der Achse (X-X) des Luftreifens bildet.
- Luftreifen nach Anspruch 4, dadurch gekennzeichnet, dass die Breite der Krampen (34, 36) betrachtet zwischen ihrem am nächsten liegenden Ende des Scheitels der Flanke und ihrem am nächsten liegenden Ende der Mittenebene (P) des Luftreifens, von einer Abmessung ist, die größer ist als ihre Länge, betrachtet in Umfangsrichtung.
- Luftreifen nach Anspruch 5, dadurch gekennzeichnet, dass die Krampen die Form eines Fischgrätenmusters (36) oder eines halben Fischgrätenmusters (34) aufweiaufweisen, das sich in Axialrichtung bis auf die Höhe der Mittenebene (P) des Luftreifens erstreckt.
- Luftreifen nach Anspruch 2, dadurch gekennzeichnet, dass die Krampen (36) auf beiden Seiten der Mittenebene (P) des Luftreifens symmetrisch angeordnet sind.
- Luftreifen nach Anspruch 2, dadurch gekennzeichnet, dass die Krampen (34; 38; 42; 46) abwechselnd auf der einen und auf der anderen Seite der Mittenebene (P) des Luftreifens angeordnet sind, mit einem Versatz einer Krampe zur nächsten in Umfangsrichtung.
- Luftreifen nach Anspruch 2, dadurch gekennzeichnet, dass die Krampen (38) sich nicht in Axialrichtung bis auf die Höhe der Mittenebene (P) des Luftreifens erstrecken, derart, dass sie untereinander einen Zwischenraum (40) auf dem Scheitel der Lauffläche weiter bestehen lassen.
- Luftreifen nach Anspruch 2, dadurch gekennzeichnet, dass die Krampen (42) eine allgemeine Form einer Raute aufweisen.
- Luftreifen nach Anspruch 2, dadurch gekennzeichnet, dass die Krampen (46) eine allgemein längliche Form aufweisen.
- Luftreifen nach Anspruch 10 oder 11, dadurch gekennzeichnet, dass die kleine Achse der Raute oder der länglichen Kontur sich allgemein von dem Scheitel der Flanke bis zur Mittenebene (P) des Luftreifens erstreckt.
- Luftreifen nach Anspruch 10 oder 11, dadurch gekennzeichnet, dass die Rauten oder die länglichen Konturen abwechselnd auf der einen und der anderen Seite der Mittenebene (P) des Luftreifens angeordnet sind, mit einem Versatz der einen Krampe zur nächsten in Umfangsrichtung.
- Luftreifen nach Anspruch 9, 10 oder 11, dadurch gekennzeichnet, dass die Länge der Krampen (38; 42; 46), in Umfangsrichtung betrachtet, von einer größeren Dimension ist als deren Breite, betrachtet zwischen ihrem Ende, das dem Scheitel der Flanke am nächsten ist und ihrem Ende, das der Mittenebene (P) des Luftreifens am nächsten ist.
- Walze (10) mit einer Mehrzahl von Luftreifen (14) nach einem der Ansprüche 1 bis 14.
- Rad (50), das einen Luftreifen (14) nach einem der Ansprüche 1 bis 14 aufweist.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
PL08290226T PL1972467T3 (pl) | 2007-03-21 | 2008-03-10 | Pół-wydrążona opona, zwłaszcza do maszyn rolniczych |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR0702062A FR2913915B1 (fr) | 2007-03-21 | 2007-03-21 | Pneumatique de type semi-creux, notamment pour machine agricole |
Publications (2)
Publication Number | Publication Date |
---|---|
EP1972467A1 EP1972467A1 (de) | 2008-09-24 |
EP1972467B1 true EP1972467B1 (de) | 2009-12-23 |
Family
ID=38542025
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP08290226A Active EP1972467B1 (de) | 2007-03-21 | 2008-03-10 | Halbhohlreifen, insbesondere für Landwirtschaftsmaschine |
Country Status (10)
Country | Link |
---|---|
US (1) | US20080230162A1 (de) |
EP (1) | EP1972467B1 (de) |
AT (1) | ATE452773T1 (de) |
CA (1) | CA2626722C (de) |
DE (1) | DE602008000427D1 (de) |
DK (1) | DK1972467T3 (de) |
FR (1) | FR2913915B1 (de) |
PL (1) | PL1972467T3 (de) |
RU (1) | RU2437776C2 (de) |
UA (1) | UA91873C2 (de) |
Families Citing this family (12)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2933903B1 (fr) * | 2008-07-18 | 2010-08-27 | Otico | Pneumatique semi-creux et jante de roue associee, notamment pour machines agricoles |
DE102009044202A1 (de) * | 2009-10-08 | 2011-04-28 | Amazonen-Werke H. Dreyer Gmbh & Co. Kg | Bodenwalze |
FR2978896B1 (fr) | 2011-08-12 | 2013-08-09 | Otico | Machine agricole a roue et rouleau adapte |
US8905097B2 (en) | 2012-02-01 | 2014-12-09 | Bridgestone Americas Tire Operations, Llc | Agricultural tire tread |
FR2987715B1 (fr) | 2012-03-09 | 2014-03-28 | Otico | Machine de modelage du sol a un ou plusieurs rouleaux |
CZ2012960A3 (cs) * | 2012-12-26 | 2014-03-05 | Farmet A.S. | Obručové kolo a válec pro zpracování půdy |
US20150258848A1 (en) * | 2013-03-13 | 2015-09-17 | Garth L. Magee | Aerodynamically spoked vehicle wheel |
FR3004384B1 (fr) * | 2013-04-12 | 2015-04-24 | Otico | Pneumatique semi-creux pour machines agricoles, en particulier pour semoirs |
FR3034283B1 (fr) * | 2015-03-30 | 2017-05-05 | Otico | Pneumatique pour rouleau agricole et rouleau agricole equipe de tels pneumatiques |
FR3038490B1 (fr) * | 2015-07-10 | 2017-07-21 | Otico | Pneumatique sillonneur |
DE102020100911A1 (de) | 2020-01-16 | 2021-07-22 | Amazonen-Werke H. Dreyer SE & Co. KG | Druckrolle für eine Säscharanordnung und Säscharanordnung |
DE102021104938A1 (de) * | 2021-03-02 | 2022-09-08 | Amazonen-Werke H. Dreyer SE & Co. KG | Reifen für ein landwirtschaftliches Sä- und/oder Bodenbearbeitungsgerät |
Family Cites Families (21)
Publication number | Priority date | Publication date | Assignee | Title |
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US1021816A (en) * | 1911-06-28 | 1912-04-02 | John Charles Barker | Outer cover for pneumatic tires. |
US1071071A (en) * | 1912-09-05 | 1913-08-26 | Racine Rubber Company | Rubber-tire tread. |
US1223049A (en) * | 1916-09-12 | 1917-04-17 | Olie J Hicks | Automobile-tire. |
US1244447A (en) * | 1916-11-13 | 1917-10-23 | John Charles Barker | Pneumatic tire. |
US1327307A (en) * | 1918-10-14 | 1920-01-06 | Western Tire & Rubber Works | Tire-retreading apparatus |
US2150107A (en) * | 1935-04-11 | 1939-03-07 | Firestone Tire & Rubber Co | Tractor wheel |
GB491474A (en) * | 1936-12-17 | 1938-09-02 | Firestone Tire & Rubber Co | Improvements in or relating to pneumatic tire casings and methods of making the same |
US3207234A (en) * | 1962-10-22 | 1965-09-21 | Wayne R Stewart | Press wheel tire with crust fracture bars |
DE1480959A1 (de) * | 1965-10-16 | 1970-03-26 | Continental Gummi Werke Ag | Luftreifen fuer Kraftfahrzeuge |
CH618643A5 (en) * | 1977-10-27 | 1980-08-15 | Kleber Colombes | Tyre for a vehicle required to move over soft or sliding ground, especially for drive wheels of agricultural tractors or similar vehicles |
FR2511952A1 (fr) * | 1981-08-31 | 1983-03-04 | Kleber Colombes | Pneumatique pour roue motrice de tracteur agricole ou vehicule similaire |
US5337814A (en) * | 1992-01-21 | 1994-08-16 | The Goodyear Tire & Rubber Company | Agricultural tire comprising lugs of defined height and inclination |
US5337816A (en) * | 1992-11-20 | 1994-08-16 | The Goodyear Tire & Rubber Company | Pneumatic agricultural tire |
GB9224555D0 (en) * | 1992-11-24 | 1993-01-13 | Creyke Charles H | Improvements relating to land management |
BR9602184A (pt) * | 1995-05-19 | 1998-04-07 | Goodyear Tire & Rubber | Pneu agrícola tendo uma carcaça de lona radial um eixo geométrico de rotaç o e uma banda de rodagem anular |
CA2176267A1 (en) * | 1996-03-11 | 1997-09-12 | Mark Leonard Bonko | Pneumatic agricultural tire |
FR2763279B1 (fr) * | 1997-05-14 | 1999-07-30 | Otico | Pneumatique du type semi-creux et rouleau equipe de tels pneumatiques |
FR2784331B1 (fr) | 1998-10-13 | 2000-12-29 | Otico | Dispositif d'assemblage pour des pneumatiques du type semi-creux |
FR2841733B1 (fr) | 2002-07-08 | 2005-01-28 | Otico | Machine agricole comportant un bati support tracte et un rouleau pourvu d'une serie de pneumatiques a profil en dome |
US6688243B1 (en) * | 2002-08-28 | 2004-02-10 | The Mcgregor Company | Minimum tillage agricultural implement having furrow opening shank assemblies |
US7478684B2 (en) * | 2005-07-07 | 2009-01-20 | Terramanus Technologies Llc | Soil conditioning device |
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2007
- 2007-03-21 FR FR0702062A patent/FR2913915B1/fr not_active Expired - Fee Related
-
2008
- 2008-03-10 DE DE602008000427T patent/DE602008000427D1/de active Active
- 2008-03-10 AT AT08290226T patent/ATE452773T1/de active
- 2008-03-10 DK DK08290226.3T patent/DK1972467T3/da active
- 2008-03-10 PL PL08290226T patent/PL1972467T3/pl unknown
- 2008-03-10 EP EP08290226A patent/EP1972467B1/de active Active
- 2008-03-17 US US12/049,727 patent/US20080230162A1/en not_active Abandoned
- 2008-03-19 CA CA2626722A patent/CA2626722C/fr active Active
- 2008-03-20 RU RU2008110815/11A patent/RU2437776C2/ru active
- 2008-03-20 UA UAA200803567A patent/UA91873C2/ru unknown
Also Published As
Publication number | Publication date |
---|---|
US20080230162A1 (en) | 2008-09-25 |
ATE452773T1 (de) | 2010-01-15 |
DE602008000427D1 (de) | 2010-02-04 |
CA2626722A1 (fr) | 2008-09-21 |
EP1972467A1 (de) | 2008-09-24 |
UA91873C2 (ru) | 2010-09-10 |
DK1972467T3 (da) | 2010-03-29 |
CA2626722C (fr) | 2015-02-10 |
FR2913915A1 (fr) | 2008-09-26 |
RU2008110815A (ru) | 2009-09-27 |
PL1972467T3 (pl) | 2010-06-30 |
RU2437776C2 (ru) | 2011-12-27 |
FR2913915B1 (fr) | 2009-05-29 |
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